Hi all, I’m using MCX516A-CCAT in RHEL-7.6 with kernel 4.19.45. The network script always failed to configure the NIC with static ip. There was no problem when using CX314A to get the ip address with the simliar network script. Could anyone give me some info to check why the network script failed to set the ip address? Detail: Network script: [rdma@rdmarhel0 network-scripts]$ cat ifcfg-ens801f0 DEVICE=ens801f0 BOOTPROTO=static HWADDR=24:8a:07:60:90:e1 IPADDR=192.168.100.101 NETMASK=255.255.255.0 ONBOOT=yes [rdma@rdmarhel0 network-scripts]$ cat ifcfg-ens801f1 DEVICE=ens801f1 BOOTPROTO=static HWADDR=24:8a:07:60:90:e0 IPADDR=173.168.100.101 NETMASK=255.255.255.0 ONBOOT=yes Restart network command: [rdma@rdmarhel0 ~]$ sudo service network restart Error output: Restarting network (via systemctl): Job for network.service failed because the control process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details. Further check: [rdma@rdmarhel0 ~]$ systemctl status network.service network.service - LSB: Bring up/down networking Loaded: loaded (/etc/rc.d/init.d/network; bad; vendor preset: disabled) Active: failed (Result: exit-code) since Mon 2019-10-14 16:43:38 CST; 5min ago Docs: man:systemd-sysv-generator(8) Process: 20373 ExecStop=/etc/rc.d/init.d/network stop (code=exited, status=0/SUCCESS) Process: 26051 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE) Oct 14 16:43:38 rdmarhel0 network[26051]: RTNETLINK answers: File exists Oct 14 16:43:38 rdmarhel0 network[26051]: RTNETLINK answers: File exists Oct 14 16:43:38 rdmarhel0 network[26051]: RTNETLINK answers: File exists Oct 14 16:43:38 rdmarhel0 network[26051]: RTNETLINK answers: File exists Oct 14 16:43:38 rdmarhel0 network[26051]: RTNETLINK answers: File exists Oct 14 16:43:38 rdmarhel0 network[26051]: RTNETLINK answers: File exists Oct 14 16:43:38 rdmarhel0 systemd[1]: network.service: control process exited, code=exited status=1 Oct 14 16:43:38 rdmarhel0 systemd[1]: Failed to start LSB: Bring up/down networking. Oct 14 16:43:38 rdmarhel0 systemd[1]: Unit network.service entered failed state. Oct 14 16:43:38 rdmarhel0 systemd[1]: network.service failed. [rdma@rdmarhel0 ~]$ journalctl -xe -- Unit network.service has begun starting up. Oct 14 16:43:37 rdmarhel0 network[26051]: Bringing up loopback interface: [ OK ] Oct 14 16:43:37 rdmarhel0 network[26051]: Bringing up interface eno1: [ OK ] Oct 14 16:43:37 rdmarhel0 network[26051]: Bringing up interface ens785f0: [ OK ] Oct 14 16:43:37 rdmarhel0 network[26051]: Bringing up interface ens785f1: [ OK ] Oct 14 16:43:38 rdmarhel0 NetworkManager[14879]: <info> [1571042618.1158] audit: op="connection-activate" uuid="e9345cc8-be74-0dd5-85a4-8260e310b66b" name="System ens801f0" result="fail" reason="No suitable d Oct 14 16:43:38 rdmarhel0 network[26051]: Bringing up interface ens801f0: Error: Connection activation failed: No suitable device found for this connection. Oct 14 16:43:38 rdmarhel0 network[26051]: [FAILED] Oct 14 16:43:38 rdmarhel0 network[26051]: Bringing up interface ens801f1: [ OK ] Oct 14 16:43:38 rdmarhel0 network[26051]: RTNETLINK answers: File exists Oct 14 16:43:38 rdmarhel0 network[26051]: RTNETLINK answers: File exists Oct 14 16:43:38 rdmarhel0 systemd[1]: network.service: control process exited, code=exited status=1 Oct 14 16:43:38 rdmarhel0 systemd[1]: Failed to start LSB: Bring up/down networking. -- Subject: Unit network.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit network.service has failed. -- -- The result is failed. Oct 14 16:43:38 rdmarhel0 systemd[1]: Unit network.service entered failed state. Oct 14 16:43:38 rdmarhel0 systemd[1]: network.service failed. Oct 14 16:43:38 rdmarhel0 polkitd[14826]: Unregistered Authentication Agent for unix-process:26045:493383 (system bus name :1.338, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF- Oct 14 16:43:38 rdmarhel0 sudo[26025]: pam_unix(sudo:session): session closed for user root Regards, Changcheng